81720720

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{113501}}^1$

素因数の和:113520

約数の個数: 60

約数和(自身を含む): 274447836

約数和(自身を除く): 192727116

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 113501, 227002, 340503, 454004, 567505, 681006, 908008, 1021509, 1135010, 1362012, 1702515, 1816016, 2043018, 2270020, 2724024, 3405030, 4086036, 4540040, 5107545, 5448048, 6810060, 8172072, 9080080, 10215090, 13620120, 16344144, 20430180, 27240240, 40860360, 81720720]

約数ペア:

[(1, 81720720), (2, 40860360), (3, 27240240), (4, 20430180), (5, 16344144), (6, 13620120), (8, 10215090), (9, 9080080), (10, 8172072), (12, 6810060), (15, 5448048), (16, 5107545), (18, 4540040), (20, 4086036), (24, 3405030), (30, 2724024), (36, 2270020), (40, 2043018), (45, 1816016), (48, 1702515), (60, 1362012), (72, 1135010), (80, 1021509), (90, 908008), (120, 681006), (144, 567505), (180, 454004), (240, 340503), (360, 227002), (720, 113501)]